GB698205A - Apparatus for regulating gas flow - Google Patents

Apparatus for regulating gas flow

Info

Publication number
GB698205A
GB698205A GB661451A GB661451A GB698205A GB 698205 A GB698205 A GB 698205A GB 661451 A GB661451 A GB 661451A GB 661451 A GB661451 A GB 661451A GB 698205 A GB698205 A GB 698205A
Authority
GB
United Kingdom
Prior art keywords
orifice
gas
conduit
upstream
thermostat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB661451A
Inventor
Robert Durham Seemans
Campbell Dean Boadle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB661451A priority Critical patent/GB698205A/en
Publication of GB698205A publication Critical patent/GB698205A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0082—Regulation; Control
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/01—Control of flow without auxiliary power
    • G05D7/0146—Control of flow without auxiliary power the in-line sensing element being a piston or float without flexible member or spring

Abstract

698,205. Regulating fluid Now. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 4, 1952 [March 20, 1951], No. 6614/51. Class 135 Apparatus for regulating the flow of a gas, e.g. hydrogen fluoride, generated from the liquid or solid state consists of a container 2 for the liquid or solid substance, a water bath 3 with electric heating elements 1 and a thermostat 4, and a conduit 8 leading from the container to an orifice 10 which operates in a " choked " condition, i.e. the gas is at sonic velocity at the throat of the orifice. As the flow rate through such an orifice is independent of conditions downstream of the orifice it can be determined solely by upstream conditions, i.e. by the setting of the thermostat, and the use of a calibration chart. In the case of hydrogen fluoride, the orifice plate 9 and the conduits 8, 12, 22 are of nickel and are lagged, and as the flow rate through the orifice is independent of the temperature of the gas only if the latter is completely dissociated to the monomolecular state, an electric heating element 17 is wound round the conduit 8 to superheat the gas to ensure complete dissociation. A copper block 19 soldered to the conduit 12 upstream of the orifice is drilled to receive a thermometer 20 for indicating that the gas is at a temperature at which it is completely dissociated. A filter 14 is fitted upstream of the orifice.
GB661451A 1951-03-20 1951-03-20 Apparatus for regulating gas flow Expired GB698205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB661451A GB698205A (en) 1951-03-20 1951-03-20 Apparatus for regulating gas flow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB661451A GB698205A (en) 1951-03-20 1951-03-20 Apparatus for regulating gas flow

Publications (1)

Publication Number Publication Date
GB698205A true GB698205A (en) 1953-10-07

Family

ID=9817664

Family Applications (1)

Application Number Title Priority Date Filing Date
GB661451A Expired GB698205A (en) 1951-03-20 1951-03-20 Apparatus for regulating gas flow

Country Status (1)

Country Link
GB (1) GB698205A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1585002A1 (en) * 2003-01-17 2005-10-12 Fujikin Incorporated Flow control method for clustering fluid and flow control device for clustering fluid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1585002A1 (en) * 2003-01-17 2005-10-12 Fujikin Incorporated Flow control method for clustering fluid and flow control device for clustering fluid
EP1585002A4 (en) * 2003-01-17 2006-04-26 Fujikin Kk Flow control method for clustering fluid and flow control device for clustering fluid

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